KR20140051613A - Apparatus and control method for charging in mobile device - Google Patents

Abstract

The present invention relates to a terminal and a control method thereof and more particularly, to an apparatus and method for charging a battery of the terminal. The apparatus for charging the battery of the terminal includes: a plurality of charging units which charges the battery by power applied through an external charging adapter; a charging control unit which monitors the states of the battery and the charging unit and controls the on and off of the charging units according to the operation mode of the terminal or the state of the battery; and a switch unit which performs a switching operation to control the on and off of the charging units according to the control of the charging control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a charging apparatus and a control method thereof,

The present invention relates to a terminal and a control method thereof, and more particularly, to an apparatus and method for charging a battery of a terminal.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Generally, a charging circuit of a battery built in a terminal is produced by setting a charging current amount of the charging circuit in the course of manufacturing a terminal, and an AC / DC adapter (hereinafter referred to as a charging adapter) And is provided to the consumer. Accordingly, in order to charge the battery of the mobile communication terminal, the user who intends to use the mobile communication terminal inserts the charging adapter from the outside into the DC jack provided at one side of the terminal, and charges the battery through the charging circuit built in the terminal.

1 is a block diagram showing a conventional charging apparatus for charging a terminal.

Referring to FIG. 1, as described above, the power supply unit 10 of the terminal is provided with an adapter interface unit 11 connected to an external charging adapter, and a power source from a DC jack connected through the adapter interface unit 11 A charging unit 12 for charging the battery, and a charge control unit 13 for charging the battery 14 and checking whether the battery is charged.

In the conventional case, power is supplied to the battery and the terminal internal system through the above-described configuration. At this time, when the terminal is operated while power is supplied from the battery 14 in the terminal operation mode in the configuration in which only the single charging unit 12 is used, an overload such as a temperature rise may occur in the charging unit 12.

That is, the conventional terminal charging units charge the battery using a charging adapter having a specific output current capacity through a charging circuit built in the terminal. When the operating mode and the charging mode of the terminal are performed simultaneously, Problems may occur and hardware problems may occur.

The present invention provides a charging apparatus and method for charging a battery to charge a battery according to an output current capacity of a charging adapter and a power required for a terminal operation without applying a load to a power supply internal block.

The charging device of a terminal according to an embodiment of the present invention includes a plurality of charging units charging a battery by a power source applied through an external charging adapter; A charge controller for monitoring the state of the battery and the battery, and for on / off controlling the plurality of charge units according to the state of the battery or the operation mode of the terminal; And a switching unit for switching on / off the plurality of charging units under the control of the charging control unit.

According to another aspect of the present invention, there is provided a method of charging a terminal, the method comprising: confirming a charge level of the battery when power is applied through an external charge adapter; Turning on a second charging unit if the charge level of the battery is higher than a reference level; Checking the temperature of the battery; Adjusting an amount of current according to a voltage applied to the second charger through the adapter to a predetermined level or less if the temperature of the battery is higher than a reference temperature; And applying a current amount corresponding to the amount of current adjusted by the second charging unit to the first charging unit.

The terminal according to the embodiment of the present invention can charge the battery and supply the driving power of the terminal without giving a load to the battery charging unit stored in the terminal.

In addition, the terminal according to the embodiment of the present invention can flexibly adjust a power source to be supplied according to the state of the charging unit inside the terminal to charge the battery and supply the driving power of the terminal.

1 is a block diagram showing a conventional charging apparatus for charging a terminal.
2 is a block diagram of a mobile terminal according to an embodiment of the present invention.
3 is a block diagram of a power supply unit according to an embodiment of the present invention.
4 is a flowchart illustrating an operation for charging a battery in a sleep mode of a terminal according to an embodiment of the present invention.
5 is a flowchart illustrating an operation for charging a battery in an operation mode of a terminal according to an embodiment of the present invention.
6 is a diagram illustrating an example of a charge curve illustrating a battery charging operation of a terminal according to an embodiment of the present invention.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

Hereinafter, a structure of a mobile terminal according to an embodiment of the present invention will be described with reference to FIG.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface or an object existing in the vicinity of the detection surface without mechanical contact using an electromagnetic force or an infrared ray. The proximity sensor 141 has a longer life than the contact type sensor and its utilization is also high.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the haptic module 154 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact of an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

A power supply unit 190 according to an embodiment of the present invention will be described in detail with reference to FIG.

3 is a block diagram of a power supply unit 190 according to an embodiment of the present invention.

3, the power supply unit 190 of the terminal 100 according to the embodiment of the present invention includes charging units 192 and 193 (not shown) for charging the battery 195 by a power source applied through an external charging adapter 191, And a charge control unit 194 for monitoring and controlling the status of the charging units 192 and 193 and the status of the battery 195.

 Particularly, the charging unit according to the embodiment of the present invention may be composed of a plurality of the first charging unit 192 and the second charging unit 193.

The first charging unit 192 may be an internal charging unit that may be configured inside the controller 180.

The second charging unit 193 may be an external charging unit existing in the power supply unit 190 of the terminal 100 or in a separate block inside the terminal 100 but not inside the controller 180.

The charge control unit 194 may monitor the state of the input current and the temperature of the first charging unit 192 and the second charging unit 193. Also, it is possible to monitor information on the charging capacity and charging state of the battery 195 and the like. The charging control unit 194 may obtain the operating state information of the terminal according to the control of the controller 180 and may control the operations of the first charging unit 192 and the second charging unit 193.

The switch unit 196 may perform a switching operation so that the first charging unit 192 or the second charging unit 193 and the battery 195 are connected to each other under the control of the charging control unit 194. [ The switch unit 196 may perform the connection switching operation of the battery 195 or the charging unit for applying power to the inside of the terminal according to the states of the charging units 192 and 193 monitored by the charging control unit 194. [

4 to 6, a charging method according to an embodiment of the present invention will be described in detail.

FIG. 4 is a flowchart illustrating an operation of charging a battery in a sleep mode of a terminal according to an exemplary embodiment of the present invention. FIG. 6 is a diagram illustrating a charging curve illustrating a battery charging operation of a terminal according to an exemplary embodiment of the present invention.

4 and 6, the charge controller 194 checks the charged state (charge level) of the battery 195 when power is applied through the adapter 191 (S402) (S404)

The charge control unit 194 determines whether the charge level of the battery 195 is 3.4 V or more. The reference value of the charge level of the battery may be 3.4V, which is a minimum voltage value for driving the terminal held by the battery 195. The reference charging level may be flexible depending on the specification of the battery.

Accordingly, when the charge level of the battery is less than 3.4V, the charge controller 194 controls the switch unit 196 to turn on the first charger unit 192 (S408) and perform the micro charge mode (Trickle Charger Mode) (S410) The fine charge mode is a first interval 610 as shown in FIG. 6, and operates when the battery voltage is almost completely discharged. Charging with a normal charging current may cause battery damage or overheat. Therefore, a fine current may be supplied before charging with a normal charging current to protect the battery and charge the battery. When the micro-charge mode is completed, the charge controller 194 re-checks the battery charge level to perform the fast charge mode (constant current step) as shown in FIG.

In the constant current step, which is the fast charging mode, the battery 155 is operated when the voltage of the battery 155 is lower than the voltage of the buffered state and is not the microfilling step. In the constant current step, a settable current according to the capacity of the battery is continuously supplied to the battery 195, and the voltage of the battery 195 is increased to reach the buffered voltage.

On the other hand, the charge control unit 194 controls the switching unit 196 to turn on the second charging unit when the battery charge level is equal to or higher than 3.4 V or when the fine charge mode is completed (S412)

The charging control unit 194 controls the switch unit 196 to turn on the second charging unit 193 and apply the voltage input through the adapter 191 to the battery 195. [ At this time, the charge control unit 194 checks the temperature of the battery 195 (S414) and confirms whether the temperature of the battery 195 is equal to or higher than the reference temperature (S416). In the embodiment of the present invention, For example,

When the temperature of the battery 194 is less than 53 ° C, the charge control unit 194 determines that the battery is in a normal operation state. If the temperature of the battery 194 reaches the full charge period of the third period 630 through the second charging unit 193, (S418). ≪ RTI ID = 0.0 >

On the other hand, when the temperature of the battery 195 is higher than or equal to 53 ° C, the charge controller 194 determines that the overcharging or heat generation of the charger 193 occurs and confirms the voltage level input from the adapter 191. (S420)

When the voltage value inputted from the adapter 191 at the voltage level of 4.5 V and inputted to each of the chargers is less than 4.5 V, the first charger 192 and the second charger 193 are both turned on It is determined that a voltage drop has occurred (S422)

The charging control unit 194 controls the current applied to at least one of the first and second charging units as the input level of the adapter 191 is not applied to the first charging unit 192 and the second charging unit 193, (S424) In FIG. 4, the current applied to the second charging unit 193 of the plurality of charging units is reduced according to the operation of the battery charging mode in the sleep mode, It is possible to increase the current applied to the first charger 192 so that the battery charging mode can be continuously performed.

5 is a flowchart illustrating an operation for charging a battery in an operation mode of a terminal according to an embodiment of the present invention.

5 and 6, the charge control unit 194 turns on the second charging unit 193 when power is applied through the adapter 191 (S502) The internal circuit is supplied by the battery. FIG. 6 illustrates a battery charging operation in the operation mode of the terminal, and it can be assumed that the voltage of the battery 195 is 3.4 V or more according to the operation mode state.

Therefore, the charge control unit 194 checks the input level input from the adapter 191 (S506) and determines whether the adapter input level is equal to or higher than the reference voltage. (S508) In the embodiment of the present invention, For example, 4.5V.

The charge control unit 194 may reduce the amount of charge current applied to the battery 195 to perform the charge mode when the adapter input level is less than 4.5 V. (S510)

On the other hand, the charge controller 194 checks the temperature indicating the degree of heat generation of the battery 195 when the adapter input level is equal to or higher than 4.5 V. (S510) When the temperature of the battery 195 is not higher than the reference temperature The charging mode through the second charging unit can be continuously performed (S514)

The charging control unit 194 turns on the first charging unit 152 (S516) and reaffirms the adapter input level when the temperature of the battery 195 is equal to or higher than the reference temperature of 53 degrees Celsius (S518). It is determined whether the input level of the adapter applied to each of the first charging unit 192 and the second charging unit 193 changes as the first charging unit 192 is turned on in a state where the input voltage level is fixed

The charging control unit 194 checks the level of the power supplied from the adapter 191 and determines whether the input level is 4.5 V or more (S520)

The charge control unit 194 adjusts the charge current amount to perform the charge mode when the input voltage level is less than 4.5V (S528)

The charge control unit 194 checks the temperature of the battery 195 when the input level of the adapter is 4.5 V or more (S522) and adjusts the amount of current for charging the battery when the battery temperature is equal to or higher than the reference temperature (53 DEG C) . On the other hand, the charge control unit 194 can continuously perform the fast charge mode through the first and second charging units 192 and 193 when the battery temperature is lower than the reference temperature. The amount of current to be regulated is set to increase the amount of current of the charger unit whose amount of current is not decreased by the amount of the reduced current when the amount of current to the charger unit of either the first charger unit or the second charger unit decreases. In the embodiment of the present invention, when the amount of current of the second charging part is reduced to a predetermined reference, the reduced amount of current can be applied to the first charging part.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

According to the embodiment of the present invention, the above-described method can be implemented as a code that can be read by a processor on a medium on which the program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (13)

A plurality of charging units charging the battery by a power source applied through an external charging adapter;
A charge controller for monitoring the state of the battery and the battery, and for on / off controlling the plurality of charge units according to the state of the battery or the operation mode of the terminal;
And a switching unit for switching on / off the plurality of charging units under the control of the charge control unit
The charging device of the terminal. The method according to claim 1,
The charging unit
A first charging unit inside the control unit of the terminal;
And a second charging unit provided outside the control unit of the terminal
The charging device of the terminal. 3. The method of claim 2,
The first charging unit
When the battery charge level is lower than the reference level under the control of the charge control unit, the battery is charged in the fine charge mode
The charging device of the terminal. 3. The method of claim 2,
The second charging unit
When the charge level of the battery is equal to or higher than the reference level, the battery is charged in the fast-charge mode in the sleep mode of the terminal under the control of the charge controller
The charging device of the terminal. The method according to claim 1,
The charge control unit
And controls the state of the battery to adjust the amount of current applied to the plurality of charging units
The charging device of the terminal. 6. The method of claim 5,
The charge control unit
When the battery charging mode is performed in the sleep mode of the terminal, the amount of current applied to the plurality of charging units is adjusted according to the temperature of the battery and the voltage value input from the adapter
The charging device of the terminal. 3. The method of claim 2,
The charge control unit
When the terminal is in the operation mode, the second charging unit is turned on when power is supplied from the external adapter, and the first charging unit is turned on when the battery temperature is higher than the reference temperature
The charging device of the terminal. 8. The method of claim 7,
The charge control unit
When both the first charging unit and the second charging unit are turned on, the charging current amount applied to the first or second charging unit is adjusted by checking the adapter input level and the temperature of the battery
The charging device of the terminal. Confirming a charge level of the battery when power is supplied through an external charge adapter;
Turning on a second charging unit if the charge level of the battery is higher than a reference level;
Checking the temperature of the battery;
Adjusting an amount of current according to a voltage applied to the second charger through the adapter to a predetermined level or less if the temperature of the battery is higher than a reference temperature;
And applying a current amount corresponding to the amount of current adjusted by the second charging unit to the first charging unit
Charging method of the terminal. 10. The method of claim 9,
Turning on the first charging unit if the charging level of the battery is below a reference level;
And allowing the battery to be charged to the micro-charge mode through the first charging unit
Charging method of the terminal. 10. The method of claim 9,
Wherein the first charging unit is turned off and only the second charging unit is turned on when the terminal is in the operation mode, and the first charging unit is turned on when the battery temperature rises above the reference temperature
Charging method of the terminal. 12. The method of claim 11,
And controlling the amount of current applied to the first charging unit or the second charging unit to be adjusted when the input level applied from the adapter is lower than a reference level when the first charging unit is turned on
Charging method of the terminal. 13. The method of claim 12,
The amount of current applied to the second charging unit is reduced to a predetermined level, and the reduced amount of current is applied to the first charging unit.
Charging method of the terminal.

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